Question

no of molecules in 20g of Nh2​

Answer 1

Answer:

Mark it as brainliest

Yes

Explanation:

No of moles = 20/ 17 = 1.17

No of molecules of N in 1 mole of NH3 is 6.022 x 10²³

Thus no. of molecules of NH3 kn 1.17=

1.17 x 6.022x 10²³

=7.04x 10²³

Answer 2

Explanation:

NH_2=14+2=16amu

16g = 1mole

20g=20/16 mole=1.25 moles

1 mole= 6.022 × 10²³ molecules

1.25 moles = 1.25 ×6.022 × 10²³ molecules =7.5275 ×10²³ molecules .....

hope it helps. ..... plz mark brainliest